Read the two passages. We have to slow down the emissions of carbon dioxide. . . . And the best [ways] to do that are energy efficiency and a switch to renewables.

–Ramez Naam,
Quoted in "The Trillion Dollar Crisis Facing the U. S.,”
Bernice Napach

The Environmental Protection Agency says that energy efficiency can reduce carbon dioxide emissions at a relatively low cost.

"Energy Efficiency as a Low-Cost Resource for Achieving Carbon Emissions Reductions,”
Environmental Protection Agency

What idea about carbon dioxide emissions do both passages support?

The creation of carbon dioxide is mainly caused by burning coal and oil.
Energy efficiency is a good way to reduce the creation of carbon dioxide.
Switching to renewable energy will reduce the amount of carbon dioxide created.
Energy efficiency is an affordable way to reduce emissions.

Read the excerpt from "object lesson, part 2." "no sign of the original envelope? " "no." "i found two boys with bills — in each case a single, too. david strager and joey buell. no envelope." louise's brows met. ellery glanced up at the clock. 9: 07. he strolled over to her. "don't show them you're worried. there's nothing to worry about. we have twenty-eight minutes." he raised his voice, smiling. which statement explains the inference ellery makes and why he makes it? he infers that miss carpenter thinks they are not going to find the thief because he sees her facial expression. he infers that it will take twenty-eight more minutes to find the missing money because that is all the time he has. he infers that the original envelope will not be found because neither david strager nor joey buell has it. he infers that david strager and joey buell took the money because they each have a dollar bill.